Year	% of relevant age group
1972	44.6791114807129
1973	44.6883201599121
1974	44.4949989318848
1975	45.1592597961426
1976	45.7615814208984
1977	46.2713394165039
1978	47.285831451416
1979	47.4605407714844
1980	47.9665603637695
1981	48.5355491638184
1982	48.7898216247559
1983	48.9982986450195
1984	49.1733818054199
1985	49.2759590148926
1986	49.695011138916
1987	49.9051208496094
1988	49.7629814147949
1989	49.5708694458008
1990	49.7946510314941
1991	49.8466911315918
1992	50.1471405029297
1993	50.2841796875
1994	50.3575401306152
1995	50.2403297424316
1996	50.9124183654785
1997	50.9613189697266
1998	51.3967781066895
1999	51.7139892578125
2000	52.3688011169434
2001	53.0450210571289
2002	53.428409576416
2003	54.0705718994141
2004	54.3643608093262
2005	56.4012298583984
2006	58.999870300293
2007	56.6535415649414
2008	55.369010925293
2009	58.2451782226562
2010	59.6769790649414
2011	61.2549514770508
2012	63.1016616821289
2013	63.1099891662598
2014	63.6952590942383
2015	64.7468032836914
2016	65.3881683349609
2017	64.9416580200195
2018	65.2343292236328
2019	65.3579864501953
2020	65.7212295532227
2021	66.3426132202148
2022	65.3924865722656